Adding styles for a webpage.

2025/src/Services/Template.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Aoc2025\Services;
+
+class Template {
+
+  /**
+   * The template to render.
+   */
+  protected $template;
+
+  /**
+   * Creates a new Template object.
+   */
+  public function __construct($template_name) {
+    $this->template = file_get_contents('templates/' . $template_name);
+  }
+
+  /**
+   * Renders the template and returns the result.
+   */
+  public function render($substitutions = []) {
+    $this->replaceSections();
+    
+    if ($substitutions) {
+      foreach ($substitutions as $key => $value) {
+        $this->template = str_replace('{{ ' . $key . ' }}', $value, $this->template);
+      }
+    }
+
+    return $this->template;
+  }
+
+  /**
+   * Replaces all sections in the template with the contents of the included file.
+   */
+  public function replaceSections() {
+    preg_match_all('/\[\[\s*(.+?)\s*\]\]/', $this->template, $matches);
+
+    foreach ($matches[0] as $i => $placeholder) {
+      $filename = $matches[1][$i];
+      $template_path = rtrim('templates', '/') . '/' . $filename;
+
+      if (file_exists($template_path)) {
+        $contents = file_get_contents($template_path);
+      } 
+      else {
+        $contents = "<!-- Missing include: {$filename} -->";
+      }
+      $this->template = str_replace($placeholder, $contents, $this->template);
+    }
+
+    return $this->template;
+  }
+
+}